Seizing the Enigma: The Race to Break the German U-Boat Codes, 1933-1945
Page 38
306
“had, on the basis”: MA: III M 1006/4:147.
306
telling the Japanese ambassador: NA:RG 457: Diplomatic “Magic” Summaries: 24 September 1943:2.
306
basic cryptosecurity principle: MA: III M 1006/4:147.
308
Naval Cypher No. 5: Hinsley, 2:636–38.
308
“The two main”: MA: III M 1006/6:169.
309
Adressbuch: Hinsley, 2:552, 681–82.
309
less than half avoided: Hinsley, 2:555.
22. The U-Tankers
Information on the attacks on the U-66 and U-117 comes from U.S. Navy, Naval Historical Center, Operational Archives, World War II Action Report, Commander in Chief, U.S. Atlantic Fleet, Hunter-Killer Operations, Serial 001020, Report Nos. 1–43 and 2–43, Task Group 21.14. Other details come from SRGN; SRMN-033; PG 30063; BdU, KTB; the deck log of the U.S.S. Card; and Lundeberg.
311
“milch cows”: Werner Rahn, “Weiträumige deutsche U-Boot-Operationen 1942/43 und ihre logistische Unterstützung durch U-Tanker,” unpublished paper.
312
adamant refusal: Hinsley, 3:1:212–13.
312
“we should not risk”: Hinsley, 2:549.
313
“if our Z information”: Hinsley, 2:549.
313
U-118: Y’Blood, 55–59.
23. The Reckoning
Calculations of the value of codebreaking are from SRH 368 and Rohwer, “Einfluss,” 359–61.
BIBLIOGRAPHY
Books and Articles
Allason, Rupert [Nigel West]. The Sigint Secrets: The Signals Intelligence War, 1900 to Today, Including the Persecution of Gordon Welchman. New York: Morrow, 1988.
Andrew, Christopher. “F. H. Hinsley and the Cambridge Moles: Two Patterns of Intelligence Recruitment.” In Diplomacy and Intelligence During the Second World War: Essays in Honour of F. H. Hinsley, ed. Richard Langhorne, pp. 22–40. Cambridge: Cambridge University Press, 1985.
——. Secret Service: The Making of the British Intelligence Community. London: Heinemann, 1985.
Andrew, Christopher, and Jeremy Noakes, eds. Intelligence and International Relations 1900–1945. Exeter Studies in History, 15. Exeter: University of Exeter, 1987.
Arnold, Philip M. “A German Code Book.” Cryptologia 3 (October 1979), 243–45.
Atha, Robert I. “Bombe! I Could Hardly Believe It!” Cryptologia 9 (October 1985), 332–36.
Bauer, [Hermann]. Das Unterseeboot: Seine Bedeutung als Teil eine Flotte—Seine Stellung im Völkerrecht—Seine Kriegsverwendung—Seine Zukunft. Berlin: Mittler & Sohn, 1931.
Beesly, Patrick. “Das Operational Intelligence Centre der britischen Admiralität und die Schlacht im Atlantik.” In Rohwer and Jäckel, pp. 133–47.
——. Room 40: British Naval Intelligence 1914–18. London: Hamish Hamilton, 1982.
——. “Special Intelligence and the Battle of the Atlantic: The British View.” In Love, ed., pp. 413–19.
——. Very Special Admiral: The Life of Admiral J. H. Godfrey, CB. London: Hamish Hamilton, 1980.
——. Very Special Intelligence: The Story of the Admirality’s Operational Intelligence Centre, 1939–1945. London: Hamish Hamilton, 1971.
——. “Who Was the Third Man at Pyry?” Cryptologia 11 (April 1987), 78–80.
Behrens, Catherine] B. A. Merchant Shipping and the Demands of War. History of the Second World War: United Kingdom Civil Series. London: Her Majesty’s Stationery Office, 1955.
Bertrand, Gustave. Enigma, ou la plus grande énigme de la guerre 1939–1945. Paris: Pion, 1973.
Blackett, P. M. S. “Operational Research: Recollections of Problems Studied, 1940–1945.” In Brassey’s Annual: The Armed Forces Year-Book, 1953, pp. 88–106. London: Clowes, n.d.
Bloch, Gilbert, Enigma avant Ultra (1930–1940). Texte définitif. Paris: privately printed, 1988. C. A. Deavours translated an earlier version as “Enigma Before Ultra,” Cryptologia 11 (July 1987), 142–55, and (October 1987), 227–34.
Böddeker, Gunter. Die Boote im Netz: Der dramatische Bericht über Karl Dönitz und das Schicksal der deutschen U-Boot-Waffe. Bergisch Gladbach: Gustav Lubbe, 1981.
Bonatz, Heinz. Die Deutsche Marine-Funkaufklärung 1914–1945. Beiträge zur Wehrforschung, XX/XXI (Arbeitskreis für Wehrforschung). Darmstadt: Wehr and Wissen, 1970.
——. Seekrieg im Äther: Die Leistungen der Marine-Funkaufklärung 1939–1945. Arbeitskreis für Wehrforschung und Bibliothek für Zeitgeschichte. Herford: Mittler, 1981.
Branicki, Oscar. “Wetterdienstunternehmungen während des Zweiten Weltkrieges.” Truppenpraxis 27 (August 1983), 594–97.
“Breaking Enigma.” After the Battle no. 37 (1982), 1–8.
Brennecke, Jochen. Die Wende im U-Boot-Krieg: Ursachen und Folgen 1939–1943. Herford: Koehler, 1984.
Brice, Martin H. The Tribals: Biography of a Destroyer Class. Shepperton, Surrey: Ian Allan, 1971.
Brown, Anthony Cave. “C”: The Secret Life of Sir Stewart Graham Menzies, Spymaster to Winston Churchill. New York: Macmillan, 1987.
Calvocoressi, Peter. Top Secret Ultra. New York: Pantheon, 1980.
Churchill, Randolph, then Martin Gilbert. Winston S. Churchill. 8 vols, plus documentary vols. Boston: Houghton Mifflin, 1966–1988. Vol. 6, Finest Hour, 1939–1941 (1983); vol. 7, Road to Victory, 1941–1945 (1986).
Clarke, William F. “Government Code and Cypher School.” I: “Its Foundation and Development with Special Reference to Its Naval Side,” Cryptologia 11 (October 1987), 219–26; II: “The Years Between,” Cryptologia 12 (January 1988), 52–58; III: “Bletchley Park 1941–1945” (April 1988), 90–97.
Clössner. “Die Meteorologie im Weltkriege.” Velhagen & Klasings Monatsheft 32 (February 1918), 154–63.
Connell, G. G. Fighting Destroyer: The Story of HMS Retard. London: William Kimber, 1976.
[Curzon of Kedleston, Marquess.] “The Government Code and Cypher School: A Memorandum by Lord Curzon,” ed. Keith Jeffrey. Intelligence and National Security 1 (September 1986), 454–58.
Deavours, C. A. “The Black Chamber: How the British Broke Enigma.” Cryptologia 4 (July 1980), 129–32.
——. “The Black Chamber: La Méthode des Bâtons.” Cryptologia 4 (October 1980), 240–47.
——. Breakthrough ’32: The Polish Solution of the Enigma. Laguna Hills, Calif.: Aegean Park Press, 1988.
Deavours, Cipher A., and Louis Kruh. Machine Cryptography and Modern Crypt analysis. Dedham, Mass.: Artech House, 1985.
——. “The Turing Bombe: Was It Enough?” Cryptologia 14 (October 1990), 331–49.
Deavours, Cipher A., and James Reeds. “The Enigma. Part I: Historical Perspectives.” Cryptologia 1 (October 1977), 381–91. (No Part II was published.)
Denning, Norman. “Erfolge und Misserfolge bei der Nutzung von Aufklärungserkenntnissen: Beispiele aus meiner Erfahrung.” In Rohwer and Jäckel, pp. 265–99.
Denniston, A. G. “The Government Code and Cypher School Between the Wars.” Intelligence and National Security 1 (January 1986), 48–70.
Denniston, R[obin] A. “The Professional Career of A. G. Denniston.” In British and American Approaches to Intelligence, ed. K. G. Robertson, pp. 104–29. London: Macmillan, 1987.
Dönitz, Karl. Zehn Jahre und Zwanzig Tage. Frankfurt am Main: Bernard &: Graefe, 1957. English translation: Memoirs: Ten Years and Twenty Days, trans. R. H. Stevens. Cleveland: World, 1959.
Douglas, W. A. B., and Jürgen Rohwer. “‘The Most Thankless Task’ Revisited: Convoys, Escorts, and Radio Intelligence in the Western Atlantic, 1941–1943.” In The RCN in Retrospect, 1910–1968, ed. James A. Boutilier, pp. 187–234. Vancouver: University of British Columbia Press, 1982.
Erskine, Ralph. “Naval Enigma: The Breaking of Heimisch and Triton.” Intelligence and National Security 3 (January 1988), 162–83.
——. “Naval Enigma: A Missing Link.” Int
ernational Journal of Intelligence and Counterintelligence 3 (Winter 1989), 493–508.
——. “U-Boats, Homing Signals and HFDF.” Intelligence and National Security 2 (April 1987), 324–30.
——. ed. “From the Archives: GC and CS Mobilizes ‘Men of the Professor Type.’” Cryptologia 10 (January 1986), 50–59.
——. ed. “U-Boat HF WT Signalling.” Cryptologia 12 (April 1988), 98–106.
Erskine, Ralph, and Gilbert Bloch. “Enigma: The Dropping of the Double Encipherment.” Cryptologia 10 (July 1986), 134–41.
Erskine, Ralph, and Frode Weierud. “Naval Enigma: M4 and Its Rotors.” Cryptologia 11 (October 1987), 235–44.
Farago, Ladislas. The Tenth Fleet. New York: Ivan Obolensky, 1962.
Ferris, John. “Whitehall’s Black Chamber: British Cryptology and the Government Code and Cypher School, 1919–1929.” Intelligence and National Security 2 (January 1987), 54–91.
Filby, P. William. “Bletchley Park and Berkeley Street.” Intelligence and National Security 3 (April 1988), 272–84.
Fischer, Gerald J. A Statistical Summary of Shipbuilding Under the U.S. Maritime Commission During World War II. Historical Reports of War Administration: United States Maritime Commission, no. 2. N.p., 1949.
Fitzgerald, Penelope. The Knox Brothers. New York: Coward, McCann & Geoghegan, 1977.
Gaj, Krzysztof. Szyfr Enigmy: Metody Zlamania. Warsaw: Wydawnictwa Komunikacji i Lacznosci, 1989. Portions translated by Christopher Kasparek.
Garlinski, Jozef. The Enigma War. New York: Scribner’s, 1979.
[Germany] Marine-Archiv. Der Krieg zur See, ed. E. v. Mantey. Berlin: Mittler, 1929–1964. Subseries Der Krieg in der Nordsee, vols. 2 (1922), 3 (1923), 4 (1924), by O. Groos; vol. 7 (1964) by Walter Gladisch. Subseries Der Krieg in der Ostsee, vol. 1 (1922) by Rudolph Firle.
[Germany] Oberkommando der Kriegsmarine. Lagevorträge des Oberbefehlshabers der Kriegsmarine vor Hitler. Arbeitskreis für Wehrforschung. Ed. Gerhard Wagner. Munich: Lehmann, 1972.
Giessler, Helmuth. Der Marine-Nachrichten- und -Ortungsdienst: Technische Entwicklung und Kriegserfahrungen. Wissenschaftliche Berichte (Arbeitskreis für Wehrforschung), 10. Munich: Lehmann, 1971.
Gilbert, Martin. See Churchill, Randolph.
Good, I. J. “Early Work on Computers at Bletchley.” NPL Report Com Sei 82, September 1976. N.p.: National Physical Laboratory, Division of Computer Science, 1976.
[Great Britain] Central Statistical Office. Statistical Digest of the War. London: His Majesty’s Stationery Office, 1951.
[Great Britain: Ministry of Food.] How Britain Was Fed in War Time: Food Control, 1939–1945. London: His Majesty’s Stationery Office, 1946.
Gröner, Erich. Die deutschen Kriegsschiffe 1815–1945. 2 vols. Munich: Lehmann, 1966–1968.
Hackmann, Willem. Seek & Strike: Sonar, Anti-Submarine Warfare and the Royal Navy, 1914–1954. London: Her Majesty’s Stationery Office, 1984.
Hall, H[essel] Duncan. North American Supply. History of the Second World War: United Kingdom Civil Series. London: Her Majesty’s Stationery Office, 1955.
Hall, H[essel] Duncan, and C. C. Wrigley. Studies of Overseas Supply. History of the Second World War: United Kingdom Civil Series. London: Her Majesty’s Stationery Office, 1956.
Hammant, Thomas. “The Magdeburg Incident: Russian Intercept and Cryptanalytic Efforts in World War I.” Cryptologia 8 (April 1984), 18–21.
Hammond, R[ichard] J[ames]. Food. History of the Second World War: United Kingdom Civil Series. 3 vols. London: His Majesty’s Stationery Office, 1951–1962.
Hepp, Leo. “Die Chiffriermaschine ‘ENIGMA.’” F-Flagge (1978), 13–23.
[Hessler, Günter.] Ministry of Defence (Navy). German Naval History: The U-Boat War in the Atlantic, 1939–1945. Facsimile ed., introduction by Andrew J. Withers. 3 vols, in 1. London: Her Majesty’s Stationery Office, 1989.
Hiley, Nicholas. “The Strategic Origins of Room 40.” Intelligence and National Security 2 (April 1987), 245–73.
Hillgruber, Andreas, and Gerhard Hümmelchen. Chronik des Zweiten Weltkrieges. Arbeitskreis für Wehrforschung. Frankfurt am Main: Bernard & Graefe, 1966.
Hinsley, F. H., with E. E. Thomas, C. F. G. Ransom, and R. C. Knight. British Intelligence in the Second World War: Its Influence on Strategy and Operations. 3 vols, in 4 parts. Cambridge: Cambridge University Press, 1979–1988.
Hirschfeld, Wolfgang. Feindfahrten: Das Logbuch eines U-Boot-Funkers. Munich: Heyne, 1982.
Hodges, Andrew. Alan Turing: The Enigma. New York: Simon and Schuster, 1983.
Hodges, Peter. Tribal Class Destroyers: Royal Navy and Commonwealth. London: Almark, 1971.
Holzapfel, Rupert. “Deutsche Polarforschung 1939/45.” Polarforschung 3 (1951–55), 85–97.
Howarth, Patrick. Intelligence Chief Extraordinary: The Life of the Ninth Duke of Portland. London: Bodley Head, 1986.
Jeffery, Keith, and Alan Sharp. “Lord Curzon and Secret Intelligence.” In Andrew and Noakes, 103–26.
Jeschke, Hubert. U-Boottaktik: Zur deutschen U-boottaktik 1900–1945. Einzelschriften zur militärischen Geschichte des Zweiten Weltkrieges, 9. Freiburg: Rombach, 1972.
Kahn, David. The Codebreakers: The Story of Secret Writing. New York: Macmillan, 1967.
——. Hitler’s Spies: German Military Intelligence in World War II. New York: Macmillan, 1978.
Kennedy, Ludovic. Sub-Lieutenant: A Personal Record of the War at Sea. London: Batsford, 1942.
[Kennedy, Malcolm D.] “From Broadway House to Bletchley Park: The Diary of Captain Malcolm Kennedy, 1934–1946,” ed. John Ferris. Intelligence and National Security 4 (July 1989), 421–50.
Kleikamp, [Gustav]. Der Einfluss der Funkaufklärung auf die Seekriegsführung in der Nordsee, 1914–1918. Kiel: Leitung der Führergehilfeausbildung der Marine, 1934.
Knowles, Kenneth A. “Ultra and the Battle of the Atlantic: The American View.” In Love, ed., pp. 444–49.
Korbel, Josef. Poland Between East and West: Soviet and German Diplomacy Toward Poland, 1919–1933. Princeton: Princeton University Press, 1963.
Kozaczuk, Wladyslaw. Enigma: How the German Cipher Machine Was Broken, and How It Was Read by the Allies in World War II. Ed. and trans. Christopher Kasparek. Frederick, Md.: University Publications of America, 1984.
Kruh, Louis. “Why Was Safford Pessimistic about Breaking the German Enigma Cipher Machine in 1942?” Cryptologia 14 (July 1990), 253–57.
Lenton, H. T. German Submarines. Navies of the Second World War. 2 vols. Garden City, N.Y.: Doubleday, 1965.
Levine, Jack. United States Cryptographic Patents, 1861–1981. Terre Haute, Ind.: Cryptologia, 1983.
Lewin, Ronald. Ultra Goes to War: The First Account of World War II’s Greatest Secret Based on Official Documents. New York: McGraw-Hill, 1978.
Lewis, R. P. W. “The Use by the Meteorological Office of Decyphered German Meteorological Data During the Second World War.” The Meteorological Magazine 114 (April 1983), 113–18.
Listowel, Judith, Countess of. Crusader in the Secret War. London: Christopher John, 1952.
Lloyd’s Register of Shipping, July 1, 1939–June 30, 1940. London, 1939.
Love, Robert William, Jr., ed. Changing Interpretations and New Sources in Naval History: Papers from the Third United States Naval Academy History Symposium. New York: Garland, 1980.
Macintyre, Donald. The Battle of the Atlantic. New York: Macmillan, 1961.
MacLachlan, Donald. Room 39: Naval Intelligence in Action, 1939–1945. London: Weidenfeld and Nicolson, 1968.
Mäkelä, Jukka E. Das Geheimnis der “Magdeburg”; Die Geschichte des Kleinen Kreuzers und die Bedeutung seiner Signalbuch im Ersten Weltkrieg. Koblenz: Bernard & Graefe, 1984.
Mallmann Showell J[ak] P. U-Boats Under the Swastika: An Introduction to German Submarines 1935–1945. New York: Arco, 1974.
March, Edgar J. British Destroyers: A History of Development, 1892–1953. London: Seelkey Service, 1961.
Meckel, Hans. “Die F
unkführung der deutschen U-Boote und die Rolle des xB-Dienstes (deutscher Marine-Funkentzifferungsdienst).” In Rohwer und Jäckel, pp. 121–32.
Middlebrook, Martin. Convoy: The Battle for Convoys SC 122 and HX 229. London: Allen Lane, 1976.
Milner-Barry, Stuart. “‘Action This Day’: The Letter from Bletchley Park Cryptanalysts to the Prime Minister, 21 October 1941.” Intelligence and National Security 1 (May 1986), 272–76.
——. “C. H. O’D. Alexander—A Personal Memoir.” In The Best Games of C. H. O’D. Alexander, ed. Harry Golombek and Bill Hertston, pp. 1–9. Oxford: Oxford University Press, 1976.
Mohr, Adrian. Fischfang ist Not: Freuden und Leiden der deutschen Hochseefischerei. Leipzig: Koehler & Amelang, 1926.
Monsarrat, Nicholas. The Cruel Sea. New York: Knopf, 1952.
Morison, Samuel Eliot. History of United States Naval Operations in World War II. 15 vols. Boston: Little, Brown, 1947–1962. Vol. 1, The Battle of the Atlantic, September 1939–May 1943 (1947); vol. 10, The Atlantic Battle Won, May 1943–May 1945 (1956).
Morris, Christopher. “Ultra’s Poor Relations.” Intelligence and National Security 1 (January 1986), 111–22.
Muggeridge, Malcolm. Chronicles of Wasted Time. Chronicle 2: The Infernal Grove. New York: Morrow, 1974.
Mulligan, Timothy. “The German Navy Evaluates Its Cryptographic Security, October 1941.” Military Affairs 49 (April 1985), 75–79.
——, ed. Records Relating to U-Boat Warfare, 1939–1945. Guides to the Microfilmed Records of the German Navy, 1850–1945, 2. Washington: National Archives and Records Administration, 1985.
Navarre, Henri, et al. Le Service de Renseignements 1871–1944. Paris: Pion, 1978.
Padfield, Peter. Dönitz: The Last Führer—Portrait of a Nazi War Leader. London: Gollancz, 1984.
Paillole, Paul. Notre Espion Chez Hitler. Collection “Vécu.” Paris: Laffont, 1985.
Parrish, Thomas. The Ultra Americans: The U.S. Role in Breaking the Nazi Codes. New York: Stein & Day, 1986.
Pate, Elbert W. “Weather and the War in Europe.” United States Naval Institute Proceedings 68 (March 1942), 327–32.